kneedragger87

Mannnnnnn... I haven't dynoed it yet. I've hit a problem and it seems to be electrical. Anytime there is any sort of load on the cars electrics (fan, headlights, stereo/sub) it makes the car run WAY too rich. I'm stumped since it kind of came out of no where.

It runs great though in the daytime with no headlights or music playing. Oh, it's running 20psi of boost.

civicdrivr

iTrader: (9)

Is the IACV opening?

Johnsteph10

Just read the whole thing!

Amazing what you did in such a small amount of time!

imj0257

iTrader: (1)

Goddam that is fast. Have you run a 1/4 mile yet?

kneedragger87

I believe it is. It's soooo weird. I'm uploading a video right now to show ya'll.

kneedragger87

Not yet. I'm expecting low 12's. Maybe 11's if I can hook up. In that video it wasn't hooking up for shi*.

civicdrivr

iTrader: (9)

Yea I just reread your post. If the stereo is causing it to go rich I doubt its the IACV.

Did it do this beforehand? You had a shop install this stuff right? Maybe they did something.

mrmako

Do you have a PowerFC installed? Maybe it's an issue there or the grounding for the computer.

Also, speaking of grounding, make sure the headlights and other items are well grounded.

kneedragger87

It ran fine when my buddy (who works at the shop) installed the new set-up. The first day we took it for a spin, it popped and backfired but that was because the plugs were too hot. I bought some heat range 8 plugs, gapped them to 25 and it ran great. But this was during the day, no headlights on. I do occasianly drive with my lights on during the day and I never noticed it doing this before. Two days ago I was driving and hit a pothole I didn't see, jarred the car pretty bad. I had my lights on that day and it started driving like poo. I parked the car for 15 minutes, started it back up and it ran fine, that's because I didn't turn on the headlights. I just now discovered that the headlights and fan is causing the problem. I'm leaning toward a bad ground or something that maybe was dislodged because of hitting that bump.

kneedragger87

I have a reflash done by a gentleman here in Florida.

Link: http://www.rs-enthalpy.com/index.html

The tune is perfect as long as there is no electrical load. Idles at 14.7... at WOT it reads 10.5-11.0, it's on the rich side, but it's safe.

civicdrivr

iTrader: (9)

mako might be on to something. Check all your ground.

kneedragger87

http://www.youtube.com/watch?v=rZH3apYvOfg

mrmako

One of the things that happens with older cars is those things that need to be on a ground wind up with some corrosion on them, or just a bad contact patch. If that is not it, it may be within the ECU.

civicdrivr

iTrader: (9)

Yea, I remember ground issues on my 88 Civic. Fun times.

Stapler

Reminds me of the fuel gauge in the bmw 2002. I could add half a tank by turning on the ac and the headlights. It would be interesting to see if a air/fuel meter that isn't part of your electrical system comes up with the same results. Though I guess if that is the signal that is going to your ecu it's still a big problem.

kneedragger87

AH! I figured it out. I had remotely installed an oil pressure sending unit and had ground it to the chassis. It needed to be grounded to the block.

Took it for a spin tonight... All the rain we had earlier today cooled down the air, the 240 loved it.

civicdrivr

iTrader: (9)

mrmako

Most excellent.... So any more vids coming

kneedragger87

Here's a dyno pull...

http://www.youtube.com/watch?v=JKUwM7uBqHs

kneedragger87

Results:




For some reason the dynamometer was refusing to show a torque readout when we went to print out this graph. It ended up making 261 lbs ft.

Jacobpockros

iTrader: (1)

Great numbers and those wheels look perfect

majin ssj eric

I wish it had engine speed instead. That looks like hellacious lag but a damn massive hit afterward!!!

kneedragger87

Full boost is at around 5000rpm. I just installed a Greddy Profec B Spec II electronic boost controller which helps with the lag and holds a constant 20psi up to the rpm cutoff. The car pulls MUCH harder now. I would estimate I'm around the 350whp mark now.



BAD NEWS though... Seems the pistons may be on their way out.

kneedragger87

I have a chance to swap all of my parts over to a CLEAN coupe chassis. I think I'm gonna do it!

civicdrivr

iTrader: (9)

Mmmmmm coupes. I love the S13 coupe. You dont see many of them.

TylerT

iTrader: (1)

Pistons out already?!

kneedragger87

We are still investigating what the issue is. Either way, with the head already tore off, I might as well go ahead and tear out the bottom end and fully build the motor.

mrmako

Well, as long as you are there. But forged my friend, forged......

Too bad you can't go RB26. And the hatch you have looks good, so why the swap?

kneedragger87

I think I'll keep the hatch after all. Oh yes, forged for sure. Weisco pistons, Pauter rods and Clevite Rod & Main Bearings.

Jacobpockros

iTrader: (1)

When the motors out, you should paint the engine bay

civicdrivr

iTrader: (9)

The engine bay is fine.

kneedragger87

Well we figured out what the problem was. A screw from the throttle body had made it's way into the combustion chamber. I need new valves and valve guides, but it's a relief knowing it wasn't the pistons.

phee

iTrader: (5)

you should still inspect the pistons. i dont think tht screw bouncing round is good for their tops

kneedragger87

Oh yeah, we are. We're going to pull them and give them a good inspection before putting it back together. As far as we can tell, it just caused slight surface abrasions... but we'll double check them. Ran a compression test before pulling the head and it read 120 across the board. VERY good numbers.

It's Clutch

iTrader: (6)

Very sick car and build. Mad props!

http://motors.shop.ebay.com/Cars-Tru...iles_ASC&_sc=1

DarkSithCL

iTrader: (1)

sick dyno run... so glad you found the valve train issue... and the electrical issue

kneedragger87

^Thanks!

Here's a video of my buddy running against a Z06 Corvette last weekend. I was riding shotgun.

http://www.youtube.com/watch?v=gZQIq_17xEE

mrmako

KD: Looks to me the 240 is running with or in front of the Z06 until a certain point. But then the Z has just too much torque and goes by. How fast was it right when the Z catches the 240?

kneedragger87

The first race, he jumped out but we ended up reeling him in and passing him by the end of second gear. The second race he jumped out by half a car and we did the same thing. Only way he passed us was when we let off. If it was a mile race the 240 would have kept on walking away. I would say when the cars passed the camera we were going in excess of 120mph.

kneedragger87

I'm becoming a wheel whore. I ordered these in a pretty nice offset, not hellaflush, but reasonable for daily driving and practical track use.

Enkei RPF1
17x8.5 +30 Front
17x9.5 +38 Rear



I'm going five lug as well.